1 
  
EP A 
Anl P 
e - 377, 
My 
X i / 
I 
iL? 
i 
4 
A 
+ 
  
  
  
C | 
I 
| | 
| BRB Bl 
| | | 
v Ÿ 
I 
4 
5 
r^ 
7 
A‘ 
I 
Le 
Al A2 
* v 
1 2 
Fig 1 Construction principle of the camera 
holder 
connected. The stays D-A2 and C-B2 are indis- 
pensible. For transportation the holder can 
be taken down. 
Various cameras can be attached to the holder. 
Other cases than the normal case (for instance 
different convergent cases) can be arranged 
by varying the position of the camera on the 
holder. 
To assure that all stereo-pairs have the same 
relative orientation the camera should not be 
removed during one and the same photography 
project. 
The stereo-camera shown in Figure 2, is in- 
tended for photography distances of 1 m or 
less and bases of 0.3-0.4 m. The same con- 
struction principle can be used even for 
greater distances and bases. 
DESCRIPTION OF THE PHOTOGRAPH 
ADJUSTING DEVICE 
Figure 3 shows a device designed and con- 
structed at the Department of Photogrammetry 
to give a rapid and precise inner orientation 
adjustment of each of the photographs placed 
in the photograph holders of a Wild A7. The 
photographs can be moved in the X- and Y- 
directions using the screws "X" and "Y" in 
the Figure. For the k-adjustment the ordinary 
K-screws of the instrument is used. 
The position of the fiducial marks and the 
setting of the orientation elements are read 
125 
Fig 2 
  
nd d eom 
The camera holder with a Hasselblad- 
camera, flash lamp and 3-D control 
points suitably placed on the linegrid 
with respect to the object being 
photographed